Yuav ua li cas cov khoom tau legiruemye steel?

Nws yog lub npe hu hais tias co nrog ib tug high school cov kev coj dawb huv (99.99 feem pua los yog ntau tshaj ntshiab substance) muaj tsawg zog, uas ua rau lawv yooj yim mus siv. Kev zam uas tau txhuas thiab tooj liab, yog siv nyob rau hauv hluav taws xob engineering. Steel, nyob rau hauv kev twb kev txuas nrog rau lawv cov functionality, yuav tsum tau muaj rigidity, hnav kuj, hardness, thiab nyob rau hauv tej rooj plaub, elasticity thiab ductility, txawm li cas los cov hlau nyob hauv cov ntshiab daim ntawv mus rau tsim lawv unsuitable.

Legiruemye steel txawv los ntawm zoo tib yam nyob artificially tswvcuab additives uas txiav txim tej yam khoom ntawm lub alloy ntawm lub neej yav tom ntej. Yog li, nyob rau hauv zoo tib yam carbon steel muaj nyob rau hauv ntau proportions "grain" ferrite, cementite, thiab perlite. Nrog rau cov kev taw qhia ntawm cov alloying ntsiab carbon tooj feem ntau txo nyob rau hauv pearlite (tsub kom steel zog).

Legiruemye steel los plaug ntxiv tshuaj feem ntau muaj ib tug distorted siv lead ua ntxaij ntoo, uas tej zaum yuav muab ntxiv viscosity (thaum lub sij hawm sib tsoo grain perlite thiab ferrite), ib tug txo nyob rau hauv internal kev nyuaj siab, txo qhov muaj tseeb ntawm cracking thaum lub sij hawm hardening los yog nce nyob rau hauv lub qhov tob ntawm cov khoom thiab calcining al.

Cov khoom ntawm stainless steel yog ncaj qha nyob rau ntxiv yam. Piv txwv li, lub ntsiab chromium thiab npib tsib xee tseg hlau qhov chaw ntawm xeb, manganese tsub kom tej yam kuj, hnav kuj thiab hardness qab. Xws li ib tug caij xws li silicon, enables cov khoom kom zoo dua mas raug nyiaj acids thiab cobalt tsub kom lub high-kub zog.

Legiruemye steel tshuaj nyob tus yeees yog muab faib ua vam meej, medium- thiab tsawg-hlau (cov ntsiab lus ntawm additives yog ntau tshaj li 10%, 2.5 - 10% thiab tsawg tshaj li 2.5% feem). Nyob rau hauv massively ua srednelegirovannye steel (ntxiv muaj txog li 5-6%) ntawm cov pearlite qauv. Tus lwm yam ntxwv alloys ntawm muaj pes tsawg leeg (martensitic, carbide, austenitic, ferritic) yog tsis tshua muaj heev.

Rau cov ntaub ntawv ntawm no hom, raws li zoo raws li rau lwm yam kev cov khoom, nws muaj nws tus kheej GOST. Alloy steels yog txwv kom muab zais los ntawm tsoom fwv cov qauv № 4543 - 71, los ntawm uas ib tug yuav saib tau lub xov tooj ntawm ntxiv cheebtsam hauv steel ntawm ib tug hom. Piv txwv li, hromomargantsovonikelevy hlau nrog titanium thiab molybdenum 25HGNMT qauv yog tsim los ntawm cov mus 0.29% carbon, mus txog 0,37% silicon, mus txog 0.8 feem pua manganese, mus txog 0.6% thiab 1.10% ntawm chromium thiab npib tsib xee (feem ), mus txog ib nrab feem pua molybdenum thiab 0,09 feem pua titanium. Nyob rau hauv tas li ntawd mus rau lub assortment thiab kev uas yuav tsum tau GOST muaj tag nrho cov ntaub ntawv nyob rau hauv cov khoom xeem txoj kev, txaus cai, thauj, ntim thiab lwm tus neeg.

Legiruemye tau tseem muab faib ua ob peb pab pawg raws li lawv lub hom phiaj: kev (. Yog siv nyob rau hauv mechanical engineering, kev siv ntawm cov txuas hniav, kev tsheb nqaj hlau tsheb, roj thiab cov nkev, springs, springs, etc.), cov cuab yeej (uas nqa txiav cov cuab yeej xws li hnyiab, cov ntaub ntawv, saws, milling cutters, etc. .) thiab tshwj xeeb-lub hom phiaj steel muaj siab kuj tiv thaiv xeb lub electrochemical hom.